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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 10 | mjames | 1 | /// Functions provided that use serial code, but are more independent |
| 2 | |||
| 3 | #include "libSerial/serialUtils.h" |
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| 4 | |||
| 5 | void sendString(usart_ctl *ctl, char const *string, int length) |
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| 6 | { |
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| 7 | for (int i = 0; i < length; i++) |
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| 8 | PutCharSerial(ctl, string[i]); |
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| 9 | } |
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| 10 | |||
| 11 | void initReadLine(editBuffer *context, char *buffer, int limit, char readLines) |
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| 12 | { |
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| 13 | context->buffer = buffer; |
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| 14 | context->limit = limit; |
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| 15 | context->counter = 0; |
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| 16 | context->complete = 0; |
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| 17 | context->readLines = readLines; // if readlines , then we look for \r at the end of a line and skip control chars |
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| 18 | context->buffer[0] = 0; |
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| 19 | } |
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| 20 | |||
| 21 | editBufferReturn readLine(usart_ctl *ctl, editBuffer *context) |
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| 22 | { |
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| 23 | int cnt = PollSerial(ctl); |
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| 24 | if (!cnt) |
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| 25 | return EDIT_NULL; |
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| 26 | |||
| 27 | while (cnt && context->counter != context->limit) |
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| 28 | { |
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| 29 | char c = GetCharSerial(ctl); |
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| 30 | if (!context->readLines || c >= ' ') |
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| 31 | { |
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| 32 | context->buffer[context->counter++] =c; |
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| 33 | if (context->counter != context->limit) |
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| 34 | context->buffer[context->counter] = 0; |
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| 35 | } |
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| 36 | if (context->readLines) |
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| 37 | { |
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| 38 | if (c == '\r') |
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| 39 | { |
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| 40 | context->complete = 1; |
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| 41 | return EDIT_CR; |
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| 42 | } |
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| 43 | else if (c < ' ') |
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| 44 | { |
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| 45 | context->counter = 0; |
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| 46 | context->buffer[0] = 0; |
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| 47 | } |
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| 48 | } |
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| 49 | } |
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| 50 | |||
| 51 | return (context->counter == context->limit) ? EDIT_DONE : EDIT_NULL; |
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| 52 | } |